安徽工业大学软件工程试卷

1、软件工程（双语）复习范围注意事项:每个学生必定写上自己的学号、任课教师姓名、姓名、班级,别的所有的答案必定全部写在答卷纸上请不要写的试卷上,试题及答卷一同交上。Part1Selectthemostappropriatechoicetoanswerthefollowingquestionsortocompletefollowingstatements.(1*15=15)1AbouttheMVC(Model-View-Controller）pattern，whichoneoffollowingstatementsisnotright？a)Separatespresentationandintera

2、ctionfromthesystemdata.b)Thesystemisstructuredintothreelogicalcomponentsthatinteractwitheachother。TheModelcomponentmanagesthesystemdataandassociatedoperationsonthatdata。TheModelcomponentdefinesandmanageshowthedataispresentedtotheuser.。TheControllercomponentmanagesuserinteraction（e.g.,keypresses，mous

3、eclicks,etc。）andpassestheseinteractionstotheViewandtheModel。.2。Thestatisticaldatashowthatthedistributionofmaintenanceeffortiscloseto?Ba)Faultrepair65%,Softwareadaptation18,Functionadditionormodification17%。b)Faultrepair17%,Softwareadaptation18，Functionadditionormodification65%。Faultrepair17，Software

4、adaptation65%，Functionadditionormodification18%.d)Faultrepair40,Softwareadaptation40,Functionadditionormodification20.3。WhichstatementisawrongstatementforWaterfallModel?BInflexiblepartitioningoftheprojectintodistinctstagesThismodelisonlyappropriatewhentherequirementsarepoorlyunderstoodThismodelisdif

5、ficulttorespondtochangingcustomerrequirementsThismodelisappropriatewhentherequirementsarewell-understood.4。Whichoneoffollowingstatementsisnotinthecompletetestcoverageofaclass？BTestingalloperationsassociatedwithanobjectSettingandinterrogatingallobjectattributesExercisingtheobjectinallpossiblestatesTe

6、stingallthepossibleobjects5。Whenwehavelittleexperiencesaboutaproject，thatistosayweknowlittlerequirementsandarenotfamilywithhowtodevelopit.Whichmodelshouldbeadopted?AFormalsystemsdevelopment.Waterfallmodel.ExploratorydevelopmentReuseorienteddevelopment。Part2Marktherightstatement,thewrongstatement(115

7、=15)Inthesoftwarearchitecturedesign，usinglarge-graincomponentsimprovesperformanceandmaintainability。错Asoftwareprocessmodelisanabstractrepresentationofaprocess.Itpresentsadescriptionofaprocessfromallperspective.Re-engineeringisenhancingthefunctionalityandperformanceofthesystem.错4.AccordingLehmanandBe

8、ladyslaws,overaprogramlifetime,sitsrateofdevelopmentisapproximatelyconstantandindependentoftheresourcesdevotedtosystemdevelopment.对Thegoalofprogramtestingistoshowtheprogramisfreeofdefects.Part3Filltheblankets:(115=15)Riskmanagementisconcernedwithidentifyingriskswhichmayaffecttheproject,theremaybesev

9、eralkindsofrisks，includingtechnologyrisks，peoplerisks,organizationalrisks，toolsrisks。（requirementsrisks）2.Commonactivitiesinobjectorienteddesignprocessesinclude,，.Definethecontextmodelsofthesystem，Designthesystemarchitecture，identifytheprincipalsystemobjects,Developdesignmodels,Specifybojectinterfac

10、es3.Generalissuesthataffectmostsoftwareare,，。Heterogeneity，Businessandsocial,Securityandtrust.4.Astructuredsetofactivitiesrequiredtodevelopasoftwaresystem,whichare,_,_。Specification，development,valodation,evolution。5.GenericprocessmodelsareWaterfallmodel，Evolutionarydevelopment，,Incrementaldevelopme

11、nt,Reusebaseddevelopment6.Thestagesofdevelopmenttestingare,.Unittesting，Componenttesting,Systemtesting.7.Exploratorydevelopment、Throwawayprototypingaretwokindmodelsofevolutionarymodel。7.Accordingtoitsfunction,Requirementcanbeclassifiedasfunctionrequirement,，Nonfunctionalrequirements，Domainrequiremen

12、ts。9.softwarepricingestimationtechniquesinclude,_，ParkinsonsLaw,_.a)Algorithmiccostmodelling,Expertjudgement,Estimation（Pricingtowin)byanalogyPart4Answerthefollowingquestionsinbrief.(5*5=25)1.Whichapproachestoobjectclassidentificationareintroducedinthisbook？WhatisPathtesting？Answer:Thebojectiveofpat

13、htestingistoensurethatthesetoftestcasesissuchthateachpaththroughtheprogramisexecutedatleastonce。Whatisarchitecturalpatterns？Whysoftwareengineeringisborn?Answer：Becauseofsoftwarecrisisinthe1960s,maincharacteristicsare：lowqualityofsoftware,highcostsofsoftware,slowdeliveryofsoftware.Softwareengineering

14、isfirstproposedataNATOmeetingin1968.Whatisthedifferencebetweensoftwareengineeringandcomputerscience?Answer：Computerscienceisconcernedwiththeoryandfundamentals；Softwareengineeringisconcernedwiththepracticalitiesofdevelopinganddeliveringusefulsoftware。Pleaseanswerthestagesofwaterfallmodel,anditsadvant

15、agesanddisadvantages.Answer:Stages：Requirementsdefinition，systemandsoftwaredesign,implementationandunittesting,integrationandsystemtesting，operationandmaintenanceAdvantages：Thereforethismodelisappropriatewhentherequirementsarewellunderstood，ProcessisvisibleandstandardandalldocumenntsareformalDisadva

16、ntages:Inflexiblepartitioningoftheprojectintodistinctstages，Thismakesitdifficulttorespondtochangingcustomerrequirements.Whatarethetwotypesofsoftwareprototypingandtheadvantagesanddisadvantagesofsoftwareprototyping？Answer:twotypes：ExploratorydevelopmentandThrow-awayprototyping.Advantages：1.Improvedsys

17、temusability2.Closermatchtothesystemneeded3。Improveddesignquality4.Improvedmaintainability5.ReducedoveralldevelopmenteffortDisadvantages:1。Lackofprocessvisibility(过程不可以见)2.Systemsareoftenpoorlystructured（系统结构不好）3.Specialskills（e。g.inlanguagesforrapidprototyping）mayberequired（需要一些技巧）Whatarethefivetyp

18、esofinteractionstylesinuserinterfacedesign?Answers：1。Directmanipulation2.Menuselection3。Formfillin4.Commandlanguage5。Naturallanguage直接操作菜单项选择择表格填写命令语言自然语言Pleaseanswerthetwomethodsoftestingandserialstagesoftesting.answers：twotypes：white-boxtestingandblack-boxtesting。serialstagesoftesting:unittesting，

19、integrationtesting.Pleaseanswerthetwomethodsoftestingandserialstagesoftesting.Answers:twotypes：white-boxtestingandblack-boxtesting。serialstagesoftesting：unittesting,integrationtesting.11。WhatisBetatesting?Answer:Areleaseofthesoftwareismadeavailabletouserstoallowthemraiseproblemsthattheydiscoverwitht

20、hesysytemdevelopers.toexperimentandtoPart5Solvethefollowingproblems(30）UsingtheUMLgraphicalnotationforobjectclasses，designthefollowingobjectclasses,identifyingattributesandoperations.Useyourownexperiencetodecideontheattributesandoperationsthatshouldbeassociatedwiththeseobjects。atelephoneaprinterfora

21、personalcomputerapersonalstereosystemabankaccountalibrarycatalogueAnswer：Therearemanypossibledesignshereandagreatdealofcomplexitycanbeaddedtotheobjects.However，Iamonlyreallylookingforsimpleobjectswhichencapsulatetheprincipalrequirementsoftheseartefacts.Possibledesignsareshownintheabovediagram。2.Desi

22、gnasetofstarttestdatatoaccomplishthepathtestingFabouttheA10afollowingA=A+1bprogram（Figure1).(5）TFcB20TA=A+BdeendFigure1Answer:A=100B=100coverpathace；A=100B=80coverpathacde；A=50B=100coverpathabceA=40B=60coverpathabcdeBasedonyourexperiencewithabankATM，drawanactivitydiagramthatmodelsthedataprocessingin

23、volvedwhenacustomerwithdrawscashfromthemachine。Answer:NoticethatIhavenotdevelopedtheactivitiesrepresentingotherservicesorfailedauthentication。DesignthewebapplicationarchitectureusingtheMVCpattern.5.Basedonfollowingdata-flowdiagram,designitssystemstructure.Basedontheabovesequencediagram,describethewh

24、oleprocessindetail.Developasequencediagramshowingtheinteractionsinvolvedwhenastudentregistersforacourseinauniversity.Coursesmayhavelimitedenrolment,sotheregistrationprocessmustincludechecksthatplacesareavailable。Assumethatthestudentaccessesanelectroniccoursecatalogtofindoutaboutavailablecourses。Answ

25、er：Arelativelysimplediagramisallthatisneededhere.ItisbestnottobetoofussyaboutthingslikeUMLarrowstylesashardlyanyonecanrememberthedifferencesbetweenthem.AbankATMtakesthecashcardandreadthepassword,checktheidandpassword,theATMlettheusertoentertheamountofcashtobedrawn，TheATMcheckthebalanceoftheuseraccou

26、nt，ifthebalanceislargerthanorequaltotheamount,thengivethecashanddeducttheamountfromtheaccount;ifthebalanceislessthantheamount,thenreturnthepreviousscreen。Drawadata-flowdiagramaboutthesystem。Aweatherdatacollectionsystemisrequiredtogenerateweathermapsonaregularbasisusingdatacollectedfromremote,unattendedweatherstationsandotherdatasourcessuchasweatherobservers,balloonsandsatellites。Weatherstationstransmittheirdatatotheareacomputerinresponsetoarequestfromthatmachine.Theareacomputervalidatesthecollecteddataandintegratesitwiththedatafromdifferentsources。Theintegrateddataisarchivedand,usingdata